From 6bc1b272ba3c53f8f6396a7060f9e4c824a0399c Mon Sep 17 00:00:00 2001
From: jdeokkim <jdeokkim@protonmail.com>
Date: Thu, 21 Nov 2024 12:57:37 +0900
Subject: [PATCH] Fix `frUpdateWorld()` using an invalid value for the initial
 `timestamp`

---
 include/ferox.h            |  2 +-
 src/external/ferox_utils.h | 17 ++++++++++-------
 src/world.c                |  7 +++++++
 3 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/include/ferox.h b/include/ferox.h
index 936618a..08c234d 100644
--- a/include/ferox.h
+++ b/include/ferox.h
@@ -82,7 +82,7 @@ extern "C" {
 /* The major, minor, and the patch release version of this library. */
 #define FR_API_VERSION_MAJOR   0
 #define FR_API_VERSION_MINOR   9
-#define FR_API_VERSION_PATCH   6
+#define FR_API_VERSION_PATCH   7
 
 /* The full version string of this library. */
 #define FR_API_VERSION  \
diff --git a/src/external/ferox_utils.h b/src/external/ferox_utils.h
index af9dcb8..5009850 100644
--- a/src/external/ferox_utils.h
+++ b/src/external/ferox_utils.h
@@ -77,7 +77,10 @@
 /* Releases the memory allocated for `arr`. */
 #define frReleaseDynArray(arr)  \
     do {                        \
-       free((arr).buffer);      \
+        free((arr).buffer);     \
+                                \
+        ((arr).length) = 0;     \
+        ((arr).capacity) = 0;   \
     } while (0)
 
 /* Returns the capacity of `arr`. */
@@ -118,12 +121,12 @@
     ((arr).length = newLength)
 
 /* Appends `newValue` at the end of `arr`. */
-#define frDynArrayPush(arr, newValue)                               \
-    do {                                                            \
-        if ((arr).length >= (arr).capacity)                         \
-            frSetDynArrayCapacity((arr), ((arr).capacity << 1));    \
-                                                                    \
-        (arr).buffer[(arr).length] = (newValue), ++((arr).length);  \
+#define frDynArrayPush(arr, newValue)                             \
+    do {                                                          \
+        if ((arr).length >= (arr).capacity)                       \
+            frSetDynArrayCapacity((arr), ((arr).capacity << 1));  \
+                                                                  \
+        (arr).buffer[(arr).length] = (newValue), (arr).length++;  \
     } while (0)
 
 /* Swaps the `i`-th value and the `j`-th value of `arr`. */
diff --git a/src/world.c b/src/world.c
index a48f28f..c7cb818 100644
--- a/src/world.c
+++ b/src/world.c
@@ -269,6 +269,13 @@ void frUpdateWorld(frWorld *w, float dt) {
     if (w == NULL || dt <= 0.0f) return;
 
     float currentTime = frGetCurrentTime();
+
+    if (w->timestamp <= 0.0f) {
+        w->timestamp = currentTime;
+
+        return;
+    }
+
     float elapsedTime = currentTime - w->timestamp;
 
     w->timestamp = currentTime, w->accumulator += elapsedTime;